LMX2541SQE3740E/NOPB National Semiconductor, LMX2541SQE3740E/NOPB Datasheet - Page 43

• Manufacturer Part Number: LMX2541SQE3740E/NOPB
• Description: IC PLL FREQ SYNTH W/VCO 36LLP
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: Clock/Frequency Synthesizer (RF)r

Specifications of LMX2541SQE3740E/NOPB

• Pll: Yes
• Input: Clock
• Output: Clock
• Number Of Circuits: 1
• Ratio - Input:output: 2:2
• Differential - Input:output: No/No
• Frequency - Max: 4GHz
• Divider/multiplier: Yes/No
• Voltage - Supply: 3.15 V ~ 3.45 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 36-LLP
• Frequency-max: 4GHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LMX2541SQE3740ETR

C3_LF[3:0] -- VALUE FOR C3 IN THE INTERNAL LOOP FILTER
This word controls the state of the internal loop filter resistor C3_LF when the device is Full Chip Mode.
C4_LF[3:0] -- VALUE FOR C4 IN THE INTERNAL LOOP FILTER
This word controls the state of the internal loop filter resistor C4_LF when the device is Full Chip Mode.
R4_LF Value
5-7
0
1
2
3
4
C3_LF
C4_LF
10
11
12
13
14
15
10
11
12
13
14
15
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
43
R3 Resistor During Fastlock (kΩ)
Low ( 200 Ω )
Reserved
C3 (pF)
C4 (pF)
100
105
120
125
140
145
160
165
16
10
11
15
16
20
21
25
26
30
31
35
36
20
25
40
45
60
65
1
2
4
0
1
5
6
0
5
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